In 1822 Ashley and business partner Andrew Henry—a bullet maker whom he met through his gunpowder business—posted famous advertisements in St. Louis newspapers seeking one hundred "enterprising young men . . . to ascend the river Missouri to its source, there to be employed for one, two, or three years." The men who responded to this call became known as "Ashley's Hundred." Between 1822 and 1825, Ashley and Henry's Rocky Mountain Fur Company, did several large scale fur trapping expeditions in the mountain west. Ashley's men are officially credited with the American discovery of South Pass in the winter of 1824. Ashley devised...Read More